All items tagged with Multiphysics (36)

COMSOL Conference 2024 to Kick Off in Boston, October 2–4

April 11, 2024 by audioXpress Staff

COMSOL Conference 2024 to Kick Off in Boston, October 2–4

The modeling and simulation event of the year returns to the US this October. The first stop of the worldwide COMSOL Conference 2024 tour is slated to be held in Boston, MA, on October 2–4. The COMSOL Conference provides a space for engineers, scientists, and researchers to showcase their modeling and simulation work, exchange ideas, and learn new modeling techniques.

Simulation Techniques: Acoustic Topology Optimization for Vibroacoustics Applications

April 10, 2024 by René Christensen

Simulation Techniques: Acoustic Topology Optimization for Vibroacoustics Applications

Acoustic topology optimization is one of the most interesting new technologies in vibroacoustics. These powerful tools enable engineers to find optimal solutions to problems related to their specific applications and this article presents multiple examples in different areas. The article, originally published in audioXpress, April 2023, includes several examples of transducer geometries modified via acoustic topology optimization.

Synopsys Announces Definitive Agreement to Acquire Ansys

January 16, 2024 by Joao Martins

Synopsys Announces Definitive Agreement to Acquire Ansys

The world of simulation and analysis software is about to be turned on its head with Synopsys announcing the intention to acquire Ansys. According to the Californian semiconductor technology company, the acquisition of the American multinational, a leader in CAE/multiphysics engineering simulation software for product design, testing and operation meets a growing need to accelerate Synopsys' Silicon to Systems strategy.

COMSOL Releases Version 6.2 of COMSOL Multiphysics

November 8, 2023 by Joao Martins

COMSOL Releases Version 6.2 of COMSOL Multiphysics

COMSOL announced the release of COMSOL Multiphysics version 6.2, adding data-driven surrogate model functionality for efficient standalone simulation apps, and multiphysics-based digital twins, among some of the major new features. For users of the Acoustics Module, version 6.2 introduces a new frequency-dependent Impedance condition for time-domain pressure acoustics, a new anisotropic material model in the Poroelastic Waves interface, and a new Port boundary condition for enhanced modeling of aeroacoustics based on linearized potential flow.

Simulation Techniques: Loudspeaker Driver Displacement Decomposition

October 25, 2023 by René Christensen

Simulation Techniques: Loudspeaker Driver Displacement Decomposition

This article by René Christensen (BSEE, MSc, PhD), offers a valuable tutorial that discusses the unique possibilities of three-dimensional analysis of loudspeaker driver displacement, using Phase Decomposition and Axial-Symmetrical Decomposition techniques. The article demonstrates how a total displacement on a cone surface can be decomposed into different components directly in COMSOL Multiphysics, and how this can reveal some of the underlying mechanisms of the driver.

Simulation Techniques: SonicEdge Ultrasound Speaker - Modeling and Application

September 27, 2023 by René Christensen

Simulation Techniques: SonicEdge Ultrasound Speaker - Modeling and Application

The SonicEdge transducer - a cutting-edge microspeaker based on a unique MEMS technology that generates sound using active ultrasound modulation - introduces a completely new class of devices that can deliver constant volume velocity across audio frequencies and beyond. The article details how to model the transducer in lumped-element and finite-element acoustic simulations and how to tailor a desired SPL response using acoustic features. As originally published in audioXpress, August 2023.

Simulation Techniques: Misconceptions in the Audio Industry

September 20, 2023 by René Christensen

Simulation Techniques: Misconceptions in the Audio Industry

In this fascinating article about common sound theory misconceptions that exist in the audio and hifi communities, René Christensen debunks three of them. Starting with group delay and phase delay, what actually happens when a loudspeaker driver moves outward and inward, and the effects of polarity and phase flip. True reference material with detailed mathematical expressions and numerical analysis. This article was originally published in audioXpress, June 2023.

Product Development, Speakers, and Acoustic Analysis in audioXpress September 2023

August 11, 2023 by audioXpress Staff

Product Development, Speakers, and Acoustic Analysis in audioXpress September 2023

audioXpress September 2023 is a rich issue in the amount of audio topics explored and depth of analysis. Learn about the latest sound meters and acoustical simulation tools, what immersive audio really is, and what is possible with the development kits for true wireless earbuds from Knowles. Roger Shively does a full analysis of the Dinaburg C2S Concentric Coplanar Stabilizer speaker technology, Charlie Laub explains how to build a Minimally Baffled Dipole Loudspeaker, and Gary Gesellchen reveals viable bass reflex speaker designs.

COMSOL and Klippel, Integration of Simulation and Measurement Data

August 4, 2023 by Roger Shively

COMSOL and Klippel, Integration of Simulation and Measurement Data

Modeling and Simulation and Measurement systems evolved significantly in the past decade. Important progress is now bridging the gap between COMSOL simulation and Klippel measurement data, Roger Shively reports after returning from Orlando, FL, where we attended another edition of the ALTI Expo & Conference (June 11-13, 2023). This article summarizes the content covered in a very important session as part of the APDA-ALTI Education Symposium 2023.

COMSOL In-Person Conferences Return with Munich Event in 2023

June 9, 2023 by audioXpress Staff

COMSOL In-Person Conferences Return with Munich Event in 2023

COMSOL has released the dates and locations for the COMSOL Conference 2023. The first conference will be held in Munich, Germany, from October 25-27. Additional conference locations for 2023 are Bengaluru, Seoul, Taipei, and Tokyo. In those events, attendees can connect with other practitioners in the simulation community, gain inspiration from industry leaders, learn new modeling techniques using the COMSOL Multiphysics software, and showcase their own research and case studies.

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